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Finding the Fourth Proportional to 10,641.44, 15,940.58 and 4,934.37

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Solution

The fourth proportional to 10,641.44, 15,940.58 and 4,934.37 is: 7,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,641.44 : 15,940.58 = 4,934.37 : x
  2. Step 2: Convert to fraction form
    10,641.44/15,940.58 = 4,934.37/x
  3. Step 3: Cross multiply
    10,641.44x = 15,940.58 × 4,934.37
  4. Step 4: Simplify right side
    10,641.44x = 78,656,695.06
  5. Step 5: Solve for x
    x = 78,656,695.06/10,641.44
  6. Step 6: Final answer
    x = 7,391.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.